NorComp 971-025-030-121 D-Sub Backshell Connector: Equivalent & Substitute Parts

Part Overview

The NorComp 971-025-030-121 is a 25-position two-piece backshell connector with 45° cable exit and shielding, designed for D-Sub applications. This part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance. The connector features metal construction with nickel-over-copper plating and is compatible with both 25-position and HD44-position D-Sub sizes using shell size B.

Substiute Parts

971-025-030-121

NorComp Inc.In Stock: 1081971-025-030-121 Datasheet

Current PartRFQ

971-025-030R121

NorComp Inc.In Stock: 1468971-025-030R121 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 971-025-030R121 qualifies as a direct equivalent based on the following critical parameters that determine substitutability:

• Number of Positions: 25 (identical)
• Compatible Shell Size: B (identical)
• Compatible D-Sub Size: 25pos and HD44pos (identical)
• Cable Exit Angle: 45° (identical)
• Cable Type: Round (identical)
• Shielding: Shielded (identical)
• Primary Material: Metal, Zinc (identical)
• Plating: Nickel over Copper (identical)
• Hardware: Assembly Hardware, Grommets; Mating Screws 4-40 (identical)
• Color: Silver (identical)

The substitute part maintains full electrical and mechanical compatibility with the original specification while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 971-025-030R121 is the appropriate selection for new designs and ongoing procurement applications. The original part 971-025-030-121 carries obsolete status, limiting future availability and support. The substitute maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance, meeting current regulatory requirements. The substitute part is available in bulk packaging with higher inventory levels, supporting production requirements.

Frequently Asked Questions (FAQ)

Q: Are the 971-025-030-121 and 971-025-030R121 mechanically interchangeable?

A: Yes. Both parts share identical specifications for number of positions (25), compatible shell size (B), compatible D-Sub sizes (25pos and HD44pos), cable exit angle (45°), cable type (round), shielding (shielded), material composition (metal, zinc), plating (nickel over copper), and hardware configuration (assembly hardware, grommets, mating screws 4-40).

Q: What is the primary difference between these parts?

A: The substitute part 971-025-030R121 is classified as active product status, whereas the original 971-025-030-121 is obsolete. The substitute also provides ROHS3 compliance compared to the original's non-compliant status, and includes defined moisture sensitivity level (MSL 1, Unlimited).

Q: Can the 971-025-030R121 be used in applications originally designed for the 971-025-030-121?

A: Yes. The substitute part maintains full compatibility across all specified electrical and mechanical parameters, making it suitable for direct replacement in existing applications.

Q: What packaging options are available for the substitute part?

A: The substitute part 971-025-030R121 is supplied in bulk packaging with 1399 pieces available in current inventory.

Q: Are there any regulatory compliance differences?

A: The substitute part 971-025-030R121 is ROHS3 compliant, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 ECCN classification.